SurfaceControl is the window manager side; it can
control the attributes of a surface but cannot push buffers
to it. Surface on the other hand is the application (producer)
side and is used to push buffers to the surface.
Change-Id: Ib6754c968924e87e8dd02a2073c7a447f729f4dd
Hotplug events say which display they're for and whether the display
was connected or disconnected. Before, this info was ignored, and the
event just triggered a rescan of all displays. If a display was
disconnected and then reconnected quickly, the rescan would treat this
as a no-op or a device property change and wouldn't turn the display
on.
Now the display manager attempts to update its state with the change
the event describes. So a quick disconnect/connect cycle will cause
the display to be turned on since the display manager will have
updated its internal state to reflect the disconnect event, and will
treat the connect event as a new display rather than a device property
change.
Bug: 7491120
Change-Id: If16268fbd0708683f6401ea72fbee9fb2c3c8d19
This new API makes it possible for an application to ask on
which Display it should show a Presentation based on the currently
selected media route.
Also added a new API on DisplayManager to query displays that
support a certain category of uses.
Improved the documentation of the Presentation class to explain
how to choose an appropriate Display for presentation.
Bug: 7409073
Change-Id: Iab451215e570ae55f3718fc228303143c800fe51
Add new API to determine whether a display is secure.
Add new API to make a SurfaceView secure.
Clarify documentation.
Bug: 7368436
Change-Id: I7068c34c910e43b4bc72e43fa0dded59a25f0fe2
The display manager must never call into the activity manager with
its lock held. Make it clear that the adapters are constructed
while holding the syncroot lock.
Bug: 7377631
Change-Id: I1557313cbb31dcad9b5a46919a88a5a1c1af3e9b
Added a new API to determine whether the display supports
protected buffers so that an application can choose a different
content stream or change how it decodes the content so
that it will be viewable on the display.
At present, wifi display does not fully support protected
buffers although this may be enhanced in the future.
Bug: 6986623
Change-Id: If53a53d72b0ec92753cc4b29f99fcb131e00449b
The window manager is no longer responsible for telling the
input system about the display viewport.
Change-Id: I932882bae55decef55f25093bb2a7ebac1620bb1
Added more complete support for logical displays with
support for mirroring, rotation and scaling.
Improved the overlay display adapter's touch interactions.
A big change here is that the display manager no longer relies
on a single-threaded model to maintain its synchronization
invariants. Unfortunately we had to change this so as to play
nice with the fact that the window manager wants to own
the surface flinger transaction around display and surface
manipulations. As a result, the display manager has to be able
to update displays from the context of any thread.
It would be nice to make this process more cooperative.
There are already several components competing to perform
surface flinger transactions including the window manager,
display manager, electron beam, overlay display window,
and mouse pointer. They are not manipulating the same surfaces
but they can collide with one another when they make global
changes to the displays.
Change-Id: I04f448594241f2004f6f3d1a81ccd12c566bf296
Split the DisplayManager into two parts. One part is bound
to a Context and takes care of Display compatibility and
caching Display objects on behalf of the Context. The other
part is global and takes care of communicating with the
DisplayManagerService, handling callbacks, and caching
DisplayInfo objects on behalf of the process.
Implemented support for enumerating Displays and getting
callbacks when displays are added, removed or changed.
Elaborated the roles of DisplayManagerService, DisplayAdapter,
and DisplayDevice. We now support having multiple display
adapters registered, each of which can register multiple display
devices and configure them dynamically.
Added an OverlayDisplayAdapter which is used to simulate
secondary displays by means of overlay windows. Different
configurations of overlays can be selected using a new
setting in the Developer Settings panel. The overlays can
be repositioned and resized by the user for convenience.
At the moment, all displays are mirrors of display 0 and
no display transformations are applied. This will be improved
in future patches.
Refactored the way that the window manager creates its threads.
The OverlayDisplayAdapter needs to be able to use hardware
acceleration so it must share the same UI thread as the Keyguard
and window manager policy. We now handle this explicitly as
part of starting up the system server. This puts us in a
better position to consider how we might want to share (or not
share) Loopers among components.
Overlay displays are disabled when in safe mode or in only-core
mode to reduce the number of dependencies started in these modes.
Change-Id: Ic2a661d5448dde01b095ab150697cb6791d69bb5
Cleaned up the implementation of Surface and SurfaceSession
to use more consistent naming and structure.
Added JNI for all of the new surface flinger display API calls.
Enforced the requirement that all Surfaces created by
the window manager be named.
Updated the display manager service to use the new methods.
Change-Id: I2a658f1bfd0437e1c6f9d22df8d4ffcce7284ca2
